ELECTRIC CURRENT
ELECTRIC DEVICES
ELECTRIC CIRCUITS
MEASURING ELECTRICITY
PRODUCING ELECTRICITY
100
This refers to a category of materials through which current does not flow easily
What is an insulator?
100
This is an electrical switch controlled by an electromagnet.
What is a relay?
100
This is a device used to open or close a circuit.
What is a switch?
100
The SI unit of electrical power
What is the watt?
100
A group of electrochemical cells acting as a single source of current
What is a battery?
200
The two types of electric current
What are AC and DC?
200
The most important device for converting electricity into motion
What is a motor?
200
This word describes the type of circuit with gaps that do not allow the flow of electricity.
What is open?
200
The unit that measures the amount of electron current that flows per unit of time
What is the ampere?
200
A device that uses electromagnetic induction to produce electric current
What is a generator?
300
This type of material only made possible by extremely cold temperatures allows current to flow without any resistance
What is a superconductor?
300
This device converts pulses of electricity into sound waves.
What is a loudspeaker?
300
This type of circuit arranges the loads so that the electric current flows through each load one after the other in a single path.
What is series?
300
The unit for measuring electrical resistance
What is the ohm?
300
This law says that the current in a conductor is directly related to voltage and inversely related to resistance.
What is Ohm's law?
400
This term refers to how a substance hinders the flow of electric current
What is resistance?
400
Making use of electromagnets, this device used to be used for communication over long distances by making "clicks" understood as longs and shorts.
What is a telegraph?
400
This type of circuit arranges the loads in separate branches so that the current is divided among them.
What is parallel?
400
The unit used to measure the force at which an electric current flows
What is the volt?
400
This refers to the production of an electric current by a conductor cutting through lines of force in a magnetic field.
What is electromagnetic induction?
500
This category of materials are neither good conductors nor good insulators.
What are semiconductors?
500
This device increases or decreases the voltage of AC through electromagnetic induction.
What is a transformer?
500
These are the three main components of an electric circuit.
What are the source of current, the conductors, and the load?
500
The unit used by electric companies to charge customers for electricity
What is the kilowatt-hour?
500
This type of generator uses a fluid as a moving conductor through the magnetic field.
What is a magnetohydrodynamic conductor?
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